Sending E-mail from Oracle

Question

Hi,
I written the below email procedure.I am facing an issues now. I am receving the mail but it does not have any content.
CREATE OR REPLACE PROCEDURE IIBWP.SEND_MAIL
is
l_mailhost VARCHAR2(64) := 'us.ingerrand.com';
l_from VARCHAR2(64) := '[email protected]';
l_subject VARCHAR2(64) := 'Duplicate records details';
l_to VARCHAR2(64) := '[email protected]';
l_mail_conn UTL_SMTP.connection;
v_cnt number;
cursor c1 is select * from error_log_table where trunc(error_timestamp) =trunc(sysdate);
BEGIN
select count(*) into v_cnt
from error_log_table
where trunc(error_timestamp) =trunc(sysdate);
--if v_cnt>=1 then
l_mail_conn := UTL_SMTP.open_connection(l_mailhost, 25);
UTL_SMTP.helo(l_mail_conn, l_mailhost);
UTL_SMTP.mail(l_mail_conn, l_from);
UTL_SMTP.rcpt(l_mail_conn, l_to);
utl_smtp.data(l_mail_conn, 'CHINNATHAMBI');
UTL_SMTP.open_data(l_mail_conn);
UTL_SMTP.write_data(l_mail_conn, UTL_TCP.CRLF ||'Date: ' || TO_CHAR(SYSDATE, 'DD-MON-YYYY HH24:MI:SS') || Chr(13));
UTL_SMTP.write_data(l_mail_conn, UTL_TCP.CRLF ||'From: ' || l_from || Chr(13));
UTL_SMTP.write_data(l_mail_conn, UTL_TCP.CRLF ||'Subject: ' || l_subject || Chr(13));
UTL_SMTP.write_data(l_mail_conn, UTL_TCP.CRLF ||'To: ' || l_to || Chr(13));
UTL_SMTP.write_data(l_mail_conn, '' || Chr(13));
FOR i IN c1 LOOP
UTL_SMTP.write_data(l_mail_conn, i.error_details);
END LOOP;
UTL_SMTP.close_data(l_mail_conn);
UTL_SMTP.quit(l_mail_conn);
--end if;
END;
Please help me to fix this issues.
the mail which i received is only having the from email address. it is not showing the to mail address, and the messages.
with regards
chinnathambi

Answer 1

user607786 wrote:
I written the below email procedure.I am facing an issues now. I am receving the mail but it does not have any content.Invalid Mime body is created by your code.
UTL_SMTP.helo(l_mail_conn, l_mailhost);Not really correct (soft error, usually ignored by SMTP server). You need to define your IP host in the HELO command - not pass the mail server its hostname.
utl_smtp.data(l_mail_conn, 'CHINNATHAMBI');
UTL_SMTP.open_data(l_mail_conn);Huh? The DATA command is intended to use a single call to send the entire e-mail (headers and body). This contains the text string "+CHINNATHAMBI+". This is not valid.
The document describes this call as follows:
UTL_SMTP.DATA (
   c     IN OUT NOCOPY connection
   body  IN VARCHAR2 CHARACTER SET ANY_CS);
Parameter      Description
c               The SMTP Connection.
body            The text of the message to be sent, including headers, in [RFC822] format.Is that string in RFC822 format? Nope - not even close.
Then straight after that, you now use multiple commands to create another e-mail body... This is not a valid SMTP command sequence. You have already supplied complete e-mail data - you cannot now supply yet more e-mail data!
UTL_SMTP.write_data(l_mail_conn, UTL_TCP.CRLF ||'Date: ' || TO_CHAR(SYSDATE, 'DD-MON-YYYY HH24:MI:SS') || Chr(13));
UTL_SMTP.write_data(l_mail_conn, UTL_TCP.CRLF ||'From: ' || l_from || Chr(13));
UTL_SMTP.write_data(l_mail_conn, UTL_TCP.CRLF ||'Subject: ' || l_subject || Chr(13));
UTL_SMTP.write_data(l_mail_conn, UTL_TCP.CRLF ||'To: ' || l_to || Chr(13));
UTL_SMTP.write_data(l_mail_conn, '' || Chr(13));Also wrong. Here you are attempting to write an e-mail header. There should not be an empty line as the first line - as an empty line is used to separate the header from the body in the mail.
The header lines must be written first (no empty lines). Then a single empty line to indicate the start of the body. Then the body itself (using local headers per body part if this a mixed multi-type Mime message).
I suggest you first get to grips with how a physical e-mail looks like, before you attempt to manually create one. You can use your mail reader and select the "+view source/raw e-mail+" option to look at the actual physical text structure of e-mails. You should also have a look at the RFC's (Request For Comments) memo's that specifies the Internet standards for Mime bodies, such as RFC822 (Internet Message Format). Use google to look up these RFC's.
Constructing e-mails is easy - but that requires you to know the basic structure of an Internet Message. Not guessing like you have done in your code.